SauthepauA sau is a really cool person. Specifically, it refers to the cool ness of someone whose fashion usually is tall, wears non-revealing leather, sunglasses, and a trenchcoat, even in hot-weather, and likes to play swimming-pool basketball. They also like to eat a lot of dairy, wheat, and egg products. Their favorite slang word, is shindig, which refers to spiking the shin. When many of these people mass together, it's a sau shindig.